Linux loadable kernel module backdoor for 2.0.X. kbd is a nice little backdoor that allows root access by modifing the SYS_creat and SYS_getuid system calls. Usage after insmod is fairly strait forward: 1. login as a normal user 2. host:~$ touch foobar 3. login again under the *same* username 4. the second login session will be given root privileges 5. Remember to repeat this procedure everytime you plan on using the backdoor. To keep this covert, the special uid resets after root is given out, this prevents the legitimate owner of the account from receiving a suspicious root shell when he/she logs in.
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